public IExpression unary() //throws RecognitionException, TokenStreamException
{
IExpression exp;
exp = null; IExpression inner = null; UnaryOp op = UnaryOp.Plus;
switch ( LA(1) )
{
case PLUS:
case MINUS:
case BNOT:
{
{
switch ( LA(1) )
{
case PLUS:
{
match(PLUS);
if (0==inputState.guessing)
{
op = UnaryOp.Plus;
}
break;
}
case MINUS:
{
match(MINUS);
if (0==inputState.guessing)
{
op = UnaryOp.Minus;
}
break;
}
case BNOT:
{
match(BNOT);
if (0==inputState.guessing)
{
op = UnaryOp.BitwiseNot;
}
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
inner=unary();
if (0==inputState.guessing)
{
exp = new UnaryExpression(inner, op);
}
break;
}
case NUM_INT:
case NUM_FLOAT:
case NUM_LONG:
case IDENT:
case STATICIDENT:
case INSTIDENT:
case LITERAL_self:
case LPAREN:
case LCURLY:
case LBRACK:
case LITERAL_base:
case STRING_LITERAL:
case CHAR_LITERAL:
{
exp=primary();
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
return exp;
}
public IExpression not_test() //throws RecognitionException, TokenStreamException
{
IExpression exp;
exp = null; IExpression inner = null;
switch ( LA(1) )
{
case LITERAL_not:
case LNOT:
{
{
switch ( LA(1) )
{
case LITERAL_not:
{
match(LITERAL_not);
break;
}
case LNOT:
{
match(LNOT);
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
inner=not_test();
if (0==inputState.guessing)
{
exp = new UnaryExpression(inner, UnaryOp.Not);
}
break;
}
case NUM_INT:
case NUM_FLOAT:
case NUM_LONG:
case IDENT:
case STATICIDENT:
case INSTIDENT:
case LITERAL_self:
case LPAREN:
case LCURLY:
case PLUS:
case MINUS:
case BNOT:
case LBRACK:
case LITERAL_base:
case STRING_LITERAL:
case CHAR_LITERAL:
{
exp=comparison();
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
return exp;
}
